Night-to-night variability of objective sleep outcomes in youth Middle Eastern football players
<h3>Objective</h3><p dir="ltr">To describe components of night-to-night variation in objective measures of sleep. </p><h3>Methods</h3><p dir="ltr">We conducted a secondary data analysis of consecutive and chronologically ordered actigraph...
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2024
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| Summary: | <h3>Objective</h3><p dir="ltr">To describe components of night-to-night variation in objective measures of sleep. </p><h3>Methods</h3><p dir="ltr">We conducted a secondary data analysis of consecutive and chronologically ordered actigraphy-based measurements for time in bed (min), time asleep (min), and wake-after-sleep onset (min). This investigation examined 575 individual night-based measures available for a sub-sample of fifty-two, male youth Middle Eastern football players tracked over a 14-day surveillance period (chronological age range: 12.1 to 16 years). Distinct multivariable-adjusted generalized additive models included each objective sleep outcome measure as dependent variable and disaggregated components of variation for night measurement-by-sleep period interaction, week part (weekday or weekend), and study participant random effects from within-subject night-to-night sleep variation. </p><h3>Results</h3><p dir="ltr">The within-subject standard deviation (SD) of ±98 min (95% confidence interval [CI], 92 to 104 min) for time in bed, ±87 min (95%CI, 82 to 93 min) for time asleep, and ±23 min (95%CI, 22 to 25 min) for wake-after-sleep-onset overwhelmed other sources of variability and accounted for ∼44% to 53% of the overall night-to-night variation. The night measurement-by-fragmented sleep period interaction SD was ±83 min (95%CI, 44 to 156 min) for time in bed, ±67 min (95%CI, 34 to 131 min) for time asleep, and ±15 min (95%CI, 7 to 32 min) for wake-after-sleep-onset that accounted for ∼22% to 32% of each sleep outcome measure overall variability. </p><h3>Conclusions</h3><p dir="ltr">Substantial random night-to-night within-subject variability poses additional challenges for strategies aiming to mitigate problems of insufficient and inconsistent sleep that are detrimental to school learning and youth athlete development processes.</p><h2>Other Information</h2><p dir="ltr">Published in: Sleep Medicine<br>License: <a href="http://creativecommons.org/licenses/by/4.0/" target="_blank">http://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.1016/j.sleep.2024.03.023" target="_blank">https://dx.doi.org/10.1016/j.sleep.2024.03.023</a></p> |
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